Refractive
Indices |
|
|
|
|
706.5 |
1.56452 |
|
656.3 |
1.56611 |
|
643.8 |
1.56655 |
|
632.8 |
1.56697 |
|
589.3 |
1.56880 |
|
587.6 |
1.56888 |
|
546.1 |
1.57104 |
|
486.1 |
1.57515 |
|
480.0 |
1.57566 |
|
435.8 |
1.58000 |
|
404.7 |
1.58402 |
|
365.0 |
1.59084 |
|
Constants of Dispersion
Formula |
|
2.4273402 |
|
-1.0813896 10 |
|
1.243797510 |
|
2.259313510 |
|
-7.671561710 |
|
6.549640210 |
|
Relative Partial Dispersions
|
|
0.3064 |
|
0.2557 |
|
0.2387 |
|
0.2371 |
|
0.5365 |
|
0.4768 |
|
|
|
-0.0007 |
|
-0.0020 |
|
Chemical
Properties |
|
Grade |
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|
2 |
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|
3 |
|
3 |
|
4 |
|
ThermalProperties |
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|
620 |
.gif)
|
670 |
|
554 |
|
594 |
|
64 |
|
71 |
|
Mechanical
Properties |
|
534 |
|
|
|
8582 |
|
3459 |
|
0.241 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
35/30 |
|
|
|
Other Properties |
|
3.06 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.87 |
0.76 |
2200 |
0.925 |
0.856 |
2000 |
0.980 |
0.960 |
1800 |
0.992 |
0.984 |
1600 |
0.999 |
0.998 |
1400 |
0.994 |
0.988 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.998 |
1000 |
0.999 |
0.998 |
950 |
0.999 |
0.998 |
900 |
0.999 |
0.998 |
850 |
0.999 |
0.998 |
800 |
0.998 |
0.997 |
700 |
0.998 |
0.997 |
650 |
0.998 |
0.997 |
600 |
0.998 |
0.997 |
550 |
0.998 |
0.997 |
500 |
0.998 |
0.996 |
480 |
0.997 |
0.995 |
460 |
0.997 |
0.994 |
440 |
0.996 |
0.993 |
420 |
0.996 |
0.993 |
400 |
0.995 |
0.991 |
390 |
0.993 |
0.987 |
380 |
0.990 |
0.980 |
370 |
0.985 |
0.971 |
360 |
0.975 |
0.950 |
350 |
0.955 |
0.912 |
340 |
0.918 |
0.843 |
330 |
0.85 |
0.73 |
320 |
0.75 |
0.56 |
310 |
0.59 |
0.35 |
300 |
0.40 |
0.16 |
290 |
0.20 |
0.04 |
280 |
0.08 |
|
|
1.56888 
62.93
0.009040 
1.57104 
62.74
0.009102